TY - JOUR AU - M. G. Okhrimenko TI - Certain properties of homogeneous differential systems JO - Differencialʹnye uravneniâ PY - 1973 SP - 2272 EP - 2275 VL - 9 IS - 12 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1973_9_12_a26/ LA - ru ID - DE_1973_9_12_a26 ER -